J3" Outdoor Unit: Malfunction Of Discharge Pipe Thermistor (R2T) - Daikin FCQ18PVJU Service Manual

SiUS28-902_a
J3
3.23 " " Outdoor Unit: Malfunction of Discharge Pipe
Thermistor (R2T)
J3
Remote
Controller
Display
Applicable RZQ18~30PVJU
Models
Method of
Malfunction is detected from the temperature detected by discharge pipe temperature
Malfunction thermistor.
Detection
Malfunction
When a short circuit or an open circuit in the discharge pipe temperature thermistor is detected.
Decision
Conditions
 Defect of thermistor (R2T) for outdoor unit discharge pipe
Supposed
 Defect of outdoor unit P.C.B. (A1P)
Causes
Troubleshooting
Refer to Thermistor Resistance / Temperature Characteristics table on P.167.
Troubleshooting
Be sure to turn off the power switch before connecting or disconnecting
Caution
the connector, or parts could be damaged.
Connector
is connected to
NO
outdoor unit
P.C.B.
(A1P).
YES
Resistance
is normal when
measured after
NO
disconnecting the thermistor
R2T from the outdoor
unit P.C.B.
(5.0kΩ~
640kΩ)
YES
Troubleshooting by Indication on the Remote Controller
Connect the thermistor and turn
on again.
Replace the thermistor (R2T).
Replace the outdoor unit P.C.B.
(A1P).
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